Games like Legacy
Games like Legacy include What Remains of Edith Finch, COCOON, Poppy Playtime, Outer Wilds, and Inside the Backrooms. We matched them by the tags players give Legacy on Steam (Exploration, Puzzle, Female Protagonist, Adventure, and 3D): closest matches first, and among equally close ones the better-known games.

What Remains of Edith Finch
Shared: Exploration · First-Person · Adventure

COCOON
Shared: Puzzle · Exploration · Adventure

Poppy Playtime
Shared: Puzzle · Horror · First-Person

Outer Wilds
Shared: Exploration · Adventure · Puzzle

Inside the Backrooms
Shared: Puzzle · Horror · Exploration

Little Nightmares
Shared: Adventure · Puzzle · Horror

Stray
Shared: Adventure · Exploration · Puzzle

Firewatch
Shared: Adventure · Exploration · First-Person

Blue Prince
Shared: Puzzle · Exploration · First-Person

The Exit 8
Shared: Exploration · Puzzle · Horror

The Witness
Shared: Exploration · Puzzle · First-Person

Five Nights at Freddy's: Security Breach
Shared: Exploration · Horror · First-Person

Lorelei and the Laser Eyes
Shared: Puzzle · Exploration · Adventure

Scanner Sombre
Shared: Exploration · Adventure · Horror

Amnesia: Rebirth
Shared: Puzzle · First-Person · Exploration

Rise of the Tomb Raider™
Shared: Adventure · Female Protagonist · Exploration

The Room
Shared: Puzzle · Adventure · Indie

Little Nightmares II
Shared: Puzzle · Adventure · Horror

Antichamber
Shared: Puzzle · Exploration · First-Person

Call of the Sea
Shared: Puzzle · Adventure · Female Protagonist

PEAK
Shared: Exploration · Adventure · First-Person

Chants of Sennaar
Shared: Puzzle · Adventure · Indie

Tomb Raider Game of the Year
Shared: Adventure · Female Protagonist · Exploration